<template>
    <div>
        <!-- 面包屑区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>权限管理</el-breadcrumb-item>
            <el-breadcrumb-item>角色列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片区 -->
        <el-card>
            <el-row>
                <el-col>
                    <!-- 绑定点击事件 -->
                    <el-button @click="addRolesVisible = true" type="primary">添加角色</el-button>
                </el-col>
            </el-row>
            <!-- 角色列表区域 -->
            <el-table :data="rolelist" border stripe>
                <!-- 展开列 -->
                <el-table-column type="expand">
                    <!-- 作用域插槽 -->
                    <template slot-scope="scope">
                        <!-- v-for循环 -->
                        <el-row :class="['bdbottom', i1 === 0 ? 'bdtop' : '', 'vcenter']"
                            v-for="(item1, i1) in scope.row.children" :key="item1.id">
                            <!-- 渲染一级权限 -->
                            <el-col :span="5">
                                <el-tag @close="removeRightById(scope.row, item1.id)" closable>{{ item1.authName
                                    }}</el-tag>
                                <i class="el-icon-caret-right"></i>
                            </el-col>
                            <!-- 渲染二级权限与三级权限 -->
                            <el-col :span="19">
                                <!-- 通过for循环嵌套渲染二级权限 -->
                                <el-row :class="[i2 === 0 ? '' : 'bdtop', 'vcenter']"
                                    v-for="(item2, i2) in item1.children" :key="item2.id">
                                    <!-- 左边 -->
                                    <el-col :span="6">
                                        <el-tag @close="removeRightById(scope.row, item2.id)" closable type="success">{{
                item2.authName }}</el-tag>
                                        <i class="el-icon-caret-right"></i>
                                    </el-col>
                                    <!-- 右边 三级权限 -->
                                    <el-col :span="18">
                                        <el-tag @close="removeRightById(scope.row, item3.id)" closable
                                            v-for="(item3, i3) in item2.children" :key="item3.id" type="warning">
                                            {{ item3.authName }}
                                        </el-tag>
                                    </el-col>
                                </el-row>
                            </el-col>
                        </el-row>
                    </template>
                </el-table-column>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="roleName" label="角色名称"></el-table-column>
                <el-table-column prop="roleDesc" label="角色描述"></el-table-column>
                <!-- 操作区域 -->
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button size="mini" @click="showEditRoles(scope.row.id)" type="primary"
                            icon="el-icon-search">编辑</el-button>
                        <!-- 删除按钮 -->
                        <el-button @click="removeUserById(scope.row.id)" size="mini" type="danger"
                            icon="el-icon-delete">删除</el-button>
                        <!-- 分配角色按钮 -->
                        <el-button @click="showAuthority(scope.row)" size="mini" type="warning"
                            icon="el-icon-setting">分配权限</el-button>
                    </template>
                </el-table-column>
            </el-table>
        </el-card>
        <!-- visible.sync显示隐藏 添加-->
        <el-dialog @close="addRolesClosed" title="修改角色" :visible.sync="addRolesVisible" width="50%">
            <!-- 内容主体区域 -->
            <el-form ref="addFormRef" :model="addForm" :rules="addFormRoles" label-width="80px">
                <!-- 角色名称 -->
                <el-form-item label="角色名称" prop="roleName">
                    <el-input v-model="addForm.roleName"></el-input>
                </el-form-item>
                <!-- 角色描述 -->
                <el-form-item label="角色描述" prop="roleDesc">
                    <el-input v-model="addForm.roleDesc"></el-input>
                </el-form-item>
            </el-form>
            <!-- 顶部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addRolesVisible = false">取 消</el-button>
                <el-button type="primary" @click="addRoles">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改 -->
        <!-- 修改用户对话框 -->
        <el-dialog @close="editRolesClosed" title="修改角色" :visible.sync="editRolesVisible" width="50%">
            <!-- 内容主体区域 -->
            <el-form ref="editFormRef" :model="editForm" :rules="addFormRoles" label-width="70px">
                <!-- 角色名称 -->
                <el-form-item label="角色名称" prop="email">
                    <el-input v-model="editForm.roleName"></el-input>
                </el-form-item>
                <!-- 角色描述 -->
                <el-form-item label="角色描述" prop="mobile">
                    <el-input v-model="editForm.roleDesc"></el-input>
                </el-form-item>
            </el-form>
            <!-- 顶部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="editRolesVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配权限对话框 -->
        <el-dialog @close="setRightDialogClosed" title="分配权限" :visible.sync="editAuthorityVisible" width="50%">
            <!-- 顶部区域 -->
            <!-- 树形组件 -->
            <el-tree ref="treeRef" :default-checked-keys="defKeys" default-expand-all node-key="id" show-checkbox
                :data="authorityList" :props="treeProps">
            </el-tree>
            <span slot="footer">
                <el-button @click="editAuthorityVisible = false">取 消</el-button>
                <el-button type="primary" @click="allotRights">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    name: 'MyRoles',
    data() {
        return {
            rolelist: [],
            // 添加用户的显示隐藏
            addRolesVisible: false,
            addForm: {
                roleName: "",
                roleDesc: ""
            },
            editRolesVisible: false,
            editForm: {},
            // 修改表单的正则
            addFormRoles: {
                roleName: [
                    { required: true, message: '请输入角色名称', trigger: 'blur' },
                    { max: 10, min: 5, message: '请输入5-10的长度', trigger: 'blur' }
                ],
                roleDesc: [
                    { required: true, message: '请输入角色描述', trigger: 'blur' },
                    { max: 10, min: 5, message: '请输入5-10的长度', trigger: 'blur' }
                ]
            },
            // 控制权限对话框的显示隐藏
            editAuthorityVisible: false,
            // 存放权限管理数据的数组
            authorityList: [],
            // 属性控件的属性绑定
            treeProps: {
                label: "authName",
                children: "children"
            },
            defKeys: [],
            // 分配权限的ID值
            roleId: ""
        };
    },
    created() {
        this.getRolesList()
    },
    methods: {
        async getRolesList() {
            const { data: res } = await this.$http.get("roles")
            if (res.meta.status !== 200) return this.$message.error("获取角色列表失败")
            // console.log(res);
            this.rolelist = res.data
        },
        // 添加确定按钮
        addRoles() {
            // 判断表单是否可以
            this.$refs.addFormRef.validate(async vaild => {
                if (!vaild) return
                // 发送请求
                const { data: res } = await this.$http.post("roles", this.addForm)
                if (res.meta.status !== 201) return this.$message.error("添加角色失败")
                // console.log(res);
                this.addRolesVisible = false
                //  重新调一下函数 刷新
                this.getRolesList()
                this.$message.success("添加角色成功")
            })
        },
        // 监听用户关闭对话框的事件
        addRolesClosed() {
            this.$refs.addFormRef.resetFields()
        },
        editRolesClosed() {
            this.$refs.editFormRef.resetFields()
        },
        // 点击修改按钮
        async showEditRoles(id) {
            const { data: res } = await this.$http.get("roles/" + id)
            if (res.meta.status !== 200) return this.$message.error("查询角色信息失败")
            // console.log(res);
            this.editForm = res.data
            this.editRolesVisible = true
        },
        // 修改确认
        editUserInfo() {
            this.$refs.editFormRef.validate(async vaild => {
                // 验证不成功 return
                if (!vaild) return
                // 修改接口
                // console.log("11"+this.editForm.roleId);
                const { data: res } = await this.$http.put("roles/" + this.editForm.roleId, {
                    roleName: this.editForm.roleName,
                    roleDesc: this.editForm.roleDesc
                })
                console.log(res);
                // 判断状态码
                if (res.meta.status !== 200) return this.$message.error("更新用户信息失败")
                // 隐藏起来
                this.editRolesVisible = false
                // 刷新数据重新渲染
                this.getRolesList()
                // 成功弹框
                this.$message.success("更新角色信息成功")
            })
        },
        // 删除按钮
        async removeUserById(id) {
            const configResult = await this.$confirm("此操作将永久删除该用户,是否继续?", "提示", {
                confirmButtonText: "确定",
                cancelButtonText: "取消",
                type: "warning"
            }).catch(err => err)
            // 如果用户确认删除 字符串为 confirm
            // 如果用户取消删除 字符串为 cancel
            if (configResult !== "confirm") {
                return this.$message.info("已取消删除")
            }
            // 调删除接口
            const { data: res } = await this.$http.delete("roles/" + id)
            if (res.meta.status !== 200) return this.$message.error("用户删除失败")
            // 如果是200说明成功了
            this.$message.success("用户删除成功")
            // 重新获取
            this.getRolesList()
        },
        // 根据id去删除对应的权限
        async removeRightById(role, rightId) {
            // 弹框提示是否删除
            const configResult = await this.$confirm("此操作将永久删除该用户,是否继续?", "提示", {
                confirmButtonText: "确定",
                cancelButtonText: "取消",
                type: "warning"
            }).catch(err => err)
            if (configResult !== "confirm") {
                return this.$message.info("已取消删除")
            }
            const { data: res } = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
            if (res.meta.status !== 200) return this.$message.error("删除权限失败")
            // 不建议调这个
            // this.getRolesList()
            role.children = res.data
        },
        // 分配权限按钮
        async showAuthority(scope) {
            this.roleId = scope.id
            // 点击获取权限数据
            const { data: res } = await this.$http.get("rights/tree")
            if (res.meta.status !== 200) return this.$message.error("获取权限列表失败")
            // 没失败就把这个数据放到数组中
            this.authorityList = res.data
            // console.log(res);
            this.getKeys(scope, this.defKeys)
            this.editAuthorityVisible = true
        },
        // 递归实现权限列表多选框选中
        getKeys(node, arr) {
            if (!node.children) {
                return arr.push(node.id)
            }
            node.children.forEach(item => {
                this.getKeys(item, arr)
            })
        },
        // 监听分配权限对话框的关闭事件
        setRightDialogClosed() {
            // 重新赋值即可
            this.defKeys = []
        },
        async allotRights() {
            const keys = [
                ...this.$refs.treeRef.getCheckedKeys(),
                ...this.$refs.treeRef.getHalfCheckedKeys()
            ]
            // console.log(keys);
            const idStr = keys.join(",")
            const { data: res } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: idStr })
            if (res.meta.status !== 200) return this.$message.error("分配权限失败")
            this.$message.success("分配权限成功")
            // 刷新列表
            this.getRolesList()
            this.editAuthorityVisible = false
        }
    },
}
</script>

<style lang='less' scoped>
.el-tag {
    margin: 7px;
}

.bdtop {
    border-top: 1px solid #eee;
}

.bdbottom {
    border-bottom: 1px solid #eee;
}

.vcenter {
    display: flex;
    align-items: center;
}
</style>